baber/WOPTO huggingface dataset:
Patent GB-138792-A (GB)
Title: New or improved means for automatically signalling when a vehicle passes over a predetermined point in a road
IPC: G08G1/09
Filed: 1919-05-20
Abstract: 138,792. Badger, E. May 20, 1919. Signals applicable specially to road vehicles.- Means for giving-warning of the approach of road vehicles, for instance at dangerous crossings, comprises signals operated by an electric motor which makes a predetermined number of revolutions after being started by the closure of a distant electric switch planted in the road and actuated by passing vehicles. The road contact member is shown in Fig. 2, the signal post in Fig. 4, the electric motor attached to the signal post in Fig. 5, and the general circuit arrangements in Fig. 9. The casing 1 shown in Fig. 2 is planted in the road with a series of cylinders 2 projecting slightly above the surface so as to be depressed by passing vehicles. Each cylinder is seated in a cradle .3 attached to a plunger rod 4, the lower end of which enters a watertight box 7 and terminates in an insulated contact member 7', the rod 4 being normally raised by means of springs 8. When depressed by passage of a vehicle the contact member 7<1> engages a split insulated socket 11 in the base of the box 7, thereby closing a. primary circuit a, Fig. 9. At the signalling point, a post 15 carries a red lamp 22 for night use, and a signal disk 20 attached to a counterbalanced rotary arm 19 on the armature shaft 17 of an electric motor 16 arranged in a box or casing 14 secured to the post. Closure of the primary circuit a withdraws an electro-magnetic catch 32 normally engaging an arm 23 on the shaft 17. When released, the shaft 17 rotates slightly owing to the unsymmetrical disposition of the counterbalancing weight 21 on the signal arm 19. By this means, a wiper 23<1> on the arm 23 is brought into contact with an insulated gapped ring 24 completing a second or motor circuit b causing the motor shaft 17 and signal arm 19 to be rotated. Reducing gearing 25, 26, transmits rotation to a secondary shaft 27 with a wiper arm 28 and co-operating gapped contact ring 30 serving to close a third circuit c which holds the catch 32 out of action until the motor shaft 17 has made the required number of revolutions. The lamp 22 is arranged in a shunt circuit d connected to both circuits band c, and may be put out of action during the day by a separate switch. In a modification, the main operative shaft 17 is connected by gearing to the motor shaft, and an audible alarm such as a buzzer is provided in a further shunt circuit. The road cylinders 2 may be formed with rounded ends and may be supported by pairs of cradles 3 and plunger rods 4. The casing 1 may contain a sump partition 6 with an end cover-plate and drainage pipe. A pipe 9<1> is also provided to enable water &c. to be pumped from the base of the casing. The battery B, Fig. 9, may be carried in the box 14.
Patent GB-1137743-A (GB)
Title: Fuel cell electrode
IPC: H01M4/96
Filed: 1966-03-23
Abstract: 1,137,743. Carbon black and carbon bodies. CLEVITE CORP. 23 March, 1966 [26 March. 1965], No. 12692/66. Heading C1A. [Also in Division H1] A hydrocarbon fuel e.g. heavy petroleum oil is mixed with compounds of iron, nickel or cobalt and sprayed under pressure in vapour form or otherwise injected into a combustion chamber at 1300 to 1500‹ F. Combustion takes place, raising the temperature to 2000‹ to 3000‹ F., and carbon black intimately associated with the metal additives results. The metal compounds are preferably oxygen or sulphur compounds. The carbon black containing metal is formed into a slurry with water and a binder e.g. P.T.F.E., mixed thoroughly, dried, pressed and sintered in a nitrogen atmosphere to form an electrode.
Patent GB-109311-A (GB)
Title: An Improved Pencil Point Protector.
Inventor: COLES FREDERICK JAMES
IPC: B43K23/10
Filed: 1916-09-11
Abstract: 109,311. Coles, F. J. Sept. 11, 1916. Pencil-point protectors; pencil-sharpeners.-A combined pencil-point protector a and pencil-sharpener b is provided with a hook d which is cut from the metal of the point-protector, Fig. 1, or of the sharpener, Fig. 4, and is adapted to engage over the edge of the waistcoat pocket. An eraser c is also provided. In a further modification, the sharpener is secured within an extension of the point-protector on which the hook d is formed.
Patent GB-410966-A (GB)
Title: Improvements in and relating to optical apparatus for use in the transmission of views by electricity
IPC: G02B5/09
Filed: 1933-05-02
Abstract: 410,966. Television. PAPST, H., St. Georgen, Schwarzwald, Germany. May 2, 1933, No. 12806. Convention date, May 2, 1932. [Class 40 (iii).] In scanning apparatus comprising two mirror wheels 10, 19 rotatable about axes substantially at right angles, a reflecting mirror or prism 24 is interposed between the mirror wheels, of which one is mounted directly on the driving shaft and the other is driven through a singlethreaded worm and worm-wheel. The shafts 1, 18 of the fast and slow wheels, 10, 19 respectively, have pointed ends and the bearings 7, 20 are held by springs 9, 22 to counterbalance the axial thrust during the rotation of the wheels. A spring 23 is mounted on the shaft 18 to take up back lash in the worm gearing. The mirror wheels are similarly and adjustably mounted on their shafts, the mirror wheel 10 being carried on a disc 11 secured to the shaft 1 and held between a disc 13 provided with radial elastic arms 12 and a disc 14 adjustably secured to the disc 11 by screws 15. The slower mirror wheel is tilted out of the perpendicular position with respect to the second wheel through an angle equal to that through which it rotates whilst the faster wheel passes the scanning beam once over the image to be transmitted or reproduced. Specification 354,630 is referred to.
Patent GB-572131-A (GB)
Title: Improvements in or relating to stands
IPC: A47B81/00
Filed: 1944-07-05
Abstract: 572,131. Tables or stands. CHAMBERLAIN, W. E. C. July 5, 1944, No. 12812. [Class 52 (iii)] A stand suitable for use in a refreshment bar has a table surface 11 supported by three or more outwardly splayed legs secured together near their lower ends by a footrail 19 and weighted to provide stability. An undershelf 15 fitted with a garment hook 18 and a litter receptacle 10 and ashtrays may be provided.
Patent GB-1498329-A (GB)
Title: Process for forming a metal pattern on a substrate
IPC: H01L21/312
Filed: 1976-03-31
Abstract: 1498329 Semiconductor devices INTERNATIONAL BUSINESS MACHINES CORP 31 March 1976 [1 May 1975] 12964/76 Heading H1K [Also in Division B6] A metal pattern is formed on a substrate (e.g. an integrated circuit wafer 10 carrying a SiO 2  layer 12 having contact openings) by the following steps. (i) There are successively deposited on the substrate a first layer 14 of an organic thermosetting polymerized resin, a second layer 16 of an organic polymerized resin soluble in a solvent which does not attack the first layer 14, and a third layer 18 of a material resistant to reactive ion etching in oxygen. (ii) A resist layer is deposited, exposed and developed to expose selected areas of the layer 18. (iii) The exposed areas of layer 18 are removed, e.g. by reactive ion etching in CF 4  or by dip-etching. (iv) The thus exposed areas of layers 16, 14 are removed by reactive ion etching in an atmosphere containing oxygen, optionally mixed with argon or nitrogen. (v) A metal layer 24 is deposited over the entire surface, having a thickness substantially equal to that of the first layer 14. (vi) The arrangement is exposed to the preferential solvent for the second layer 16, thus removing this layer and everything on it and leaving the first layer 14 with a metal pattern therein having an upper surface substantially coplanar with that of the layer 14. A multilayer metallization pattern may be formed by repetition of these steps. The preferred materials for the various layers are as follows: for layer 14, a polyimide formed by reacting pyromellitic dianhydride with an aromatic diamine which yields a polyamic acid; for layer 16, a polysulphone polymerized resin formed by reacting sulphur dioxide with aromatic or aliphatic vinyl compounds (this is preferentially soluble in nmethyl pyrrolidone, preferably in an ultra-sonic bath); for layer 18, SiO 2 , Al 2 O 2 , Si, Si 3 N 4 , a metal or glass, but preferably a glass resin predominantly of a polymethylsiloxane material. All three layers 14, 16, 18 are preferably spun on, and then subjected to heat. The metal layer 24 may be Al, Mo, Ta or laminated combinations of Cr-Ag-Cr, Mo-Au-Mo or Cr-Cu-Cr.
Patent GB-566549-A (GB)
Title: Improvements in mounting piezo-electric crystals
IPC: H03H9/05
Filed: 1943-08-11
Abstract: 566,549. Piezo-electric crystal mountings. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 11, 1943, No. 13001. Convention date, Aug. 12, 1942. [Class 40 (v) A mounting for a piezo - electric crystal is designed to allow the crystal a limited amount of movement without risk of short-circuiting the electrodes. A crystal plate 9 has metallised electrodes 15, 17 leaving a small unmetallised area m, ml at each end of the crystal and on opposite surfaces. The crystal is supported at its ends in resilient U -shaped metal clamps a, b, a<1>, b <1>, each comprising a long flat arm a, a<1> engaging an electrode surface and a short arm b, b <1> engaging an unmetallised area m, m The arms b, b <1> are of dished cross-section so as to engage the crystal along a point or line, situated at a definite distance from the end of the adjacent electrode. This permits a limited endwise movement of the crystal without short-circuiting. The movement is limited by bent-round lugs c, c<1> formed on the arms a, a<1>. The crystal is mounted in a housing of low-loss moulded insulating material comprising a cover 5 connected by screws 23 to the base 3, a gasket 29 providing an hermetic seal. The heads of the screws, not shown, are sealed with wax. Upward movement of the crystal is limited by shoulders 30 on the cover 5. The clamps are connected by wires to connecting plugs 31, 33 sealed into the base. U.S.A. Specification 2,228,601 is referred to.
Patent GB-339230-A (GB)
Title: Improvements in hat forms
IPC: A42C3/00
Filed: 1930-04-28
Abstract: 339,230. Copeland, R. J. April 28, 1930. Bodies, forming.-A hat form comprises a rigid dome-shaped shell having a plurality of slots formed therein to receive the folds of the material formed thereover. The slots may extend to the base of the shell so that the shell may be sprung over base members 16 of different sizes. The shell may have a flat top, and a rounded top may be provided to fit on the flat top. A supplementary device may be provided comprising a plurality of thin flexible longitudinally slotted members 10 connected at their upper ends tc a plate 8. The members 10 may have hooked washers and nuts 12 at their lower ends. for tightening the members on the form. Perforations may be made in the form along the edges of the slots and around the crown for facilitating the tacking of the material to the form. The surplus material passed through the slots may be stitched from the inside of the form or from the outside when the supplementary members 10 are used, when the material beyond the seam may be cut away.
Patent GB-316916-A (GB)
Title: Improvements in or relating to chain grate stokers for steam-boiler or other furnaces
IPC: F23H11/00
Filed: 1928-05-03
Abstract: 316,916. Chadwick, V. R. May 3, 1928. Grates; fuel, feeding.-A travelling chain grate is mounted on a frame one or both sides of which comprise longitudinal air passages 10, 11 communicating at their rear ends and supplied with air by means of injectors 20, 21. The passages 11 are connected to a transverse airchamber 15 located at the front of the furnace from which air is delivered to longitudinal tapering troughs 17 disposed beneath the upper run of the grate and supported on transverse bars 18. Baffles 38 sloping upwardly towards the rear are arranged at the top of the troughs and the spaces between the baffles diminish gradually towards the rear. The grate links are connected by pins carrying sets of rollers 25 which run on the edges of the troughs and also engage with the front and rear sprocket wheels on the drums 28, 29. The links of the grate are provided at each side with inclined ribs 34. Fuel is fed to the grate by a hopper 48 divided by a partition 50 into two compartments, the inner of which is covered by an inclined riddle 53 so that fuel thrown thereon is sifted, the coarse fuel being led to the grate and the fine fuel falling on the layer of coarse fuel. The pivoted dumping plate 38 rests with its forward edge upon the air ducts 11. The grate frame is provided with rollers 45 which run on tracks 46 to facilitate removal of the grate from the furnace.
Patent GB-542818-A (GB)
Title: Improvements in and relating to glass furnace forehearths
IPC: C03B7/18
Filed: 1940-08-16
Abstract: 542,818. Glass manufacture. McNISH, A. F., and MONCREIFF, Ltd., J. Aug. 16, 1940, No. 13085. [Class 56] A glassware forming machine of the suctiongathering type is provided with a refractory cap, carried by and operated from the machine, for covering and uncovering the opening in a gathering basin in order to protect the glass in the basin from excessive surface cooling. The gathering basin 1 has a cover 2 provided with an opening 3 through which a parison mould is dipped to gather a charge of glass. The machine illustrated is that described in Specification 542,677 in which a single parison mould 30 is oscillated about a vertical axis by a pneumatic cylinder 16 and is raised and lowered by a cylinder 10 and by gravity. A refractory cap 6 is carried by an arm 7 secured to part of the mould mechanism, so that it moves horizontally and vertically with the mould. The position of the cap is so arranged that it closes the opening 2 when the mould reaches the position at which a parison is transferred to the finishing mould.
Patent GB-1164754-A (GB)
Title: Method of Manufacturing a Magnetic Head Device
Inventor: PERKINS ROBERT LARSON
IPC: G11B5/187
Filed: 1968-03-18
Abstract: 1,164,754. Magnetic heads. CONTROL DATA CORP. 18 March, 1968 [3 April, 1967], No. 13111/68. Heading G5R. A magnetic head is manufactured by physically eroding unmasked portions of a magnetic structure provided with at least one gap. Thus, a combined erase and read/write head is manufactured by: (a) supporting a ferrite block 12 between C- shaped blocks 10, 14 so as to define air gaps in which non-magnetic shims (22, 26, Fig. 1, not shown) may be located; (b) placing an accurately machined mask over the blocks; and (c) eroding away the unwanted portions by sand-blasting, ultrasonic vibration or subjecting to abrasives in water or other liquid. The magnetic structure may consist of a single block, and a multiple erase and read/write head assembly may be manufactured by supporting a number of blocks in slots in one or more holders and eroding as above. A combined erase and read/write head (Fig. 4, not shown) may be arranged with the erase gap trailing and divided into two regions designed to erase the margins of a newly-recorded track.
Patent GB-1038459-A (GB)
Title: Electrically conductive compositions
IPC: H01B1/00
Filed: 1963-04-03
Abstract: The invention comprises the compound Ag2In8Se13 as well as compositions approximatin thereto in which the selenium atoms are deficient from the quantity required for the stoichiometric ratio. The deficiency may range from 50 to 500 p.p.m. Se atoms.  The compound may be prepared by mixing stoichiometric amounts of the three elements and heating the mixture to a temperature in excess of 960 DEG  C. and cooling.  Alternatively, the compound may be made by melting Ag2Se and In2Se3 together in a quartz ampoule in an inert atmosphere, e.g. argon, or under a vacuum, and in the ratio of 20 mole per cent Ag2Se and 80 mole per cent In2Se3.  The compound may be zone refined to remove any impurities. Annealing of the compound at temperatures in excess of 525 DEG  C. causes Se atoms to be lost from the compound. The Se atoms may be returned by reheating the compound deficient in Se atoms in Se vapour.  The compound, or compositions approximating thereto, may be doped with impurities, e.g. Cu, Cu2 Br2, to modify their electrical conductivity characteristics.
Patent GB-378044-A (GB)
Title: Manufacture of cellulose esters
IPC: C08B3/00
Filed: 1931-05-05
Abstract: Cellulose or a conversion product thereof is esterified by means of ketene in the presence of liquid sulphur dioxide.  A mixed ester may be obtained by reacting simultaneously with a fatty acid containing at least three carbon atoms, or with an aromatic carboxylic acid, or halide thereof.  In examples, (1) cotton linters are mixed with liquid sulphur dioxide and zinc chloride in a pressure vessel, and ketene introduced at low temperatures; (2) sulphite pulp, ketene, butyric acid, sulphuric acid, zinc sulphate, and liquid sulphur dioxide are caused to react in a pressure vessel, cellulose acetobutyrate being produced; (3) hydrocellulose is esterified by means of ketene and benzoylchloride in the presence of liquid sulphur dioxide.  The resulting solutions may be worked up directly into threads or films, or the cellulose esters isolated in any usual manner.
Patent GB-205129-A (GB)
Title: Adjustable brush-rocker for dynamo electric machines
IPC: H02K23/18
Filed: 1922-05-11
Abstract: 205,129. Baker, O. T. May 11, 1922. Brush - holders. - Adjustable brush gear for a totally enclosed machine comprises a r i n g 1 rotatably mounted on extensions 5 of the casing, and carrying brush-holders 8. Springs 8 secured to a fixed insulating disc 13 and connected to the field windings make contact with the brush-holders in all positions of adjustment. The ring 1 is held in position by the bearing end plate.
Patent GB-144077-A (GB)
Title: Improvements in and relating to separate leaf kinematographs
IPC: G02B27/06
Filed: 1919-05-27
Abstract: 144,077. Hooper, H. W., and Booth, W. R. May 27, 1919. Optical - projection apparatus. - Apparatus for exhibiting moving pictures &c. in daylight or artificial light consists of alight-proof cabinet containing means for projecting the pictures on to an int e r n a l exhibiting- screen, which is viewed indirectly through an aperture by reflexion on a glass plate or mirror. In the form shown in Fig. 1, the pictures P on a separate-leaf kinematograph apparatus are illuminated by lamps L', L<2>, and are projected by an objective O on to a screen PP, which is viewed through an aperture V by reflexion in a transparent glass plate G. In a modification, the screen PP is located at P<1>P<1> and is viewed in an inclined opaque mirror. The apparatus may be attached to a coin-freed goods-delivery machine. Specification 5025/10 is referred to.
Patent GB-133031-A (GB)
IPC: F28D1/03
Abstract: 133,031. Aktiebolaget Lidk÷pings Mekaniska Verkstad. Sept. 24, 1918, [Convention date]. Ball bearings.-The axial thrust of the spindle of a lathe or similar machine tool is' taken by a ball bearing 6 placed outside the bearing bush 2 in a recess in the housing 5. This arrangement obviates reducing the length of the'bush 2. A ball bearing 8 is placed at the rear of the brush.
Patent GB-133379-A (GB)
IPC: F41A5/18
Abstract: 133,379. Imray, O., (Colt's Patent Firearms Manufacturing Co.). Aug. 9, 1918. Breech actions, sliding breech-block.-Consists of special locking-mechanism and an adjustable buffer for the action-slide of a gas-operated rifle. whereby the rate of firing may be regulated. The breech-block C is locked by a brace D pivoted to the breech-block and adapted to engage a fixed abutment on the breech body. The brace C is connected by a pivoted link M to a cross-head l at the rear end of the action-slide L. On its underside, the locking-brace D is formed with a cam surface d<3>, d<4> adapted to engage fixed studs R to start the rearward movement of the breechblock when the brace is depressed, and also to start the upward locking movement of the brace towards the end of the closing movement. The brace is adapted to retract the firing-pin when the breech is unlocked by means of an inclined recess c. Figs. 3 and 4, engaging an enlarged head n on the firing-pin. A block S is fixed to the cross-head l of the action-slide to act as the firing-hammer. In the construction shown in Fig. 3, the action-slide recoils against the action of a spring K which is arranged in a tube q closed at the rear by an adjustable plug. A buffer is arranged in a concentric tube r on the tube q, and comprises an annular plunger s and a number of packing-disks s<1> filling the tube r. The inner tube screws into the outer tube, so that the compression of the packing can be adjusted to regulate the rate of firing. The firing-mechanism is described in Specification 133,552.
Patent GB-416294-A (GB)
Title: Ferrule contracting tool
IPC: B25B27/10
Filed: 1934-05-03
Abstract: 416,294. Ferrule-contracting tools. SCHRADER'S SON, Inc., A., 470, Vanderbilt Avenue, Brooklyn, New York, U.S.A.- (Assignees of Williams, S. T.; 45, Ontario Road, Bellcrosse, New York, U.S.A.) May 3, 1934, No. 13413. Convention date, May 13, 1933. [Class 83 (iv).] Jointing by stamping, -A ferrule-contracting tool comprises a plur. ality of overlapping plates A, positioned by pin-and-slot joints a, formed with oppositely disposed recesses 5<a> to provide a circular opening. Pressure on the edges 3<a> effect contraction. In a modification Figs. 5 and 6 the plates are extended and pivoted to form pliers.
Patent GB-1064238-A (GB)
Title: Diffraction grating ruling apparatus
IPC: G02B5/18
Filed: 1964-04-01
Abstract: 1,064,238. Engraving diffraction gratings. W. R. HORSFIELD. Feb. 23, 1965 [April 1, 1964], No. 13498/64. Heading B6J. [Also in Divison G1] Apparatus for ruling a diffraction grating comprises a blank supporting carriage 2 which is movable between each ruling operation by means of an hydraulic ram 18 operated by a positive displacement pump 58, the effective volume delivered by the pump and its stroke being controlled by a servomotor 102 actuated by an interferometer which measures the position of the carriage 2 at succeeding ruling positions. The carriage 2 slides on guides 4, 90 to 95% of its weight being taken by immersing the lower part thereof in mercury. Fixed guides 10 support a cross-carriage 12 carrying a diamond ruling tool. A motor 40 drives a power shaft 48 through a belt drive 46 and this shaft is used to control various operations of the apparatus either directly or by use of microswitches. The positive displacement pump 58 is actuated by an eccentric in the shaft 48 acting on a compound lever arrangement 54. The pump output is applied to the hydraulic ram 18 by way of a slide valve 60 also operated by the shaft 48. The ram 28 acts on the carriage 2 by way of a connecting rod 24 held in place by wires 25 tensioned using a pulley and weight arrangement 26. The position of the carriage 2 is measured using the interferometer in which comprises a light source 28, a beam splitter 30, a fixed mirror 32, a mirror 34 attached to the carriage 2 and a photomultiplier 38. The output of the photomultiplier is fed to an amplifier 94 which actuates the servomotor 102 to adjust the effective volume of the fluid delivered by the pump 58 and the stroke of the pump. This adjustment is described in the Specification and takes place through an electromagnetic clutch controlled by a microswitch actuated by the shaft 48. The amplifier output may be monitored using an oscilloscope 98 or meter 99. A rotatable optical plate 139 is included in the path of the light to the fixed mirror 32 to compensate for changes in atmospheric pressure. The plate 139 is rotated under the control of an adjustable mercury barometer described in the Specification. A second amplifier 116 is also provided to compensate for the changes in path length to the mirror 34 as the carriage 2 moves. The cross-carriage 12 is reciprocated by a drive from the shaft 48, means being provided for raising the ruling tool clear of the blank during the return motion after ruling. The crosscarriage 12 may carry two ruling tools if desired.